28464431260 has 48 divisors (see below), whose sum is σ = 62189568000. Its totient is φ = 10931699520.

The previous prime is 28464431213. The next prime is 28464431263. The reversal of 28464431260 is 6213446482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28464431263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102010 + ... + 259489.

It is an arithmetic number, because the mean of its divisors is an integer number (1295616000).

Almost surely, 2^28464431260 is an apocalyptic number.

28464431260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28464431260 is an abundant number, since it is smaller than the sum of its proper divisors (33725136740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28464431260 is a wasteful number, since it uses less digits than its factorization.

28464431260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361666 (or 361664 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 28464431260 in words is "twenty-eight billion, four hundred sixty-four million, four hundred thirty-one thousand, two hundred sixty".